8171720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4751}}^1$

素因数の和:4805

約数の個数: 32

約数和(自身を含む): 18817920

約数和(自身を除く): 10646200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 4751, 9502, 19004, 23755, 38008, 47510, 95020, 190040, 204293, 408586, 817172, 1021465, 1634344, 2042930, 4085860, 8171720]

約数ペア:

[(1, 8171720), (2, 4085860), (4, 2042930), (5, 1634344), (8, 1021465), (10, 817172), (20, 408586), (40, 204293), (43, 190040), (86, 95020), (172, 47510), (215, 38008), (344, 23755), (430, 19004), (860, 9502), (1720, 4751)]